Lead and zinc distribution in chloridizing sintering of zinc dust obtained after processing of different kinds of raw materialsin the iron and steel industry

Dosmukhamedov N.K. Nursainov I.N. Koishina G.M. Zholdasbay E.E. Kaplan V.A.
2025 Ore and Metals Publishing house

Non-ferrous Metals
2025 #58 Issue 1 3 - 9 pp.

The paper studies the effect of temperature and NH₄Cl consumption on lead extr action from dust of various com positions with determination of optimal sintering parameters. New data on metal distribution between sintering products of dust No.1 and No. 2 from processing ferrous scrap metal in electric arc furnaces and from smelting iron ore raw materials in an electric steelmaking furnace, respectively, are obtained. Comprehensive analytical studies of intermediate and final products are performed using XRF spectroscopy, XRD analysis and electron microscopy. This ensures quality control of the obtained products during the implementation of the techno logical process of dust sintering together with ammonium chloride. Based on the experiments, a high distribution of Pb from dust No. 1 and No. 2 into sublimates was achieved – 98% and 97.6%, respectively, with its residual content in clinker – 2.0% and 2.4%. At the same time, low zinc extraction from dust No. 1 and No. 2 into subli mates is shown – 0.04% and 0.06%, respectively. The technology proposed in the work ensures environmental safety of the dust processing and the production of valuable technogenic raw materials – lead sublimates and zinc-containing clinker, which can be used as additional raw materials for the production of commercial lead and zinc.

ammonium chloride , distribution , dust , lead , mathematical model , sintering , zinc

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Department of Metallurgy and Mineral Processing, Satbayev University, Almaty, Kazakhstan
Department of Mining, Metallurgy and Natural Sciences, Zhezkazgan University named after O. A. Baikonurov, Zhezkazgan, Kazakhstan
Department of Material and Interfaces, Weizmann Institute of Science, Rehovot, Israel

Department of Metallurgy and Mineral Processing
Department of Mining
Department of Material and Interfaces

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